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Y uiten :faire gamut @time d inmovsnnnr 1N GBNTRIFUGAL PUMPS.

SPECIFICATIONM TO ALL WHOM I'l MAY CONCERN: p

Be it known that I,.E. H ALI; COVL, of the city, county, and State of New York, have invented a new Improvement in Pumps; and Ido hereby declare that the following is a full, clear, and-exact description thereof, which will enable others skilled in the art to make and use the same, reference being had'to the accompanying drawings, forming a-part of this speciiication. 4 Y l k The pump embraced 'in the present invention consists of a turbine or other suitable water-wheel at the lower end of the pump-cylinder or tube, in combination with a vertical, spiral, or screw-shaped elevator, placed above said water-wheel, and revolving in conjunction therewith, `in such manner `that the water forced or drawn into the pump-'cylinder by the action of the Water-wheel, will be taken by the said sercwelcraton`and carried up or raised through the pump-cylinder or tube, from whence it will escape at its upper end through any suitable discharge nozzle or pipe, and conducted to any locality or point desired.`

In addition to the above, the present inventionl also! consists informing at the upper end of the pumpcylinder, above the screw-elevator, a squareshaped chamber, by means of which-the twirl or circular motion that the water has, as it leaves the screw-elevator, will be neutralized or overcome before the water escapes 'or is discharged from the pump,.as will lbe herein more fullyexplained.

i In the accompanying plate of drawings my improvement in pumps is illustrated.

Figure 1 being a central vertical section through the pump-cylinder, with the screw-elevator andwaterwheel in side elevation; and

Figure 2, a transverse horizontal section taken inthe plane of the line a: z, iig. 1.

A, in the drawings, represents the puinp-cylinder` or tube, the length o'f which, as well also as its size, diameter, zc., will depend upon circumstances fand the work which the pump has to perform. B, aivertical shaft extending down through the centre of the pump-cylinder, or tube turning in suitable bearings of` the same at each end. C, a water-wheel of any suitable construction, secured to the lower end of shaft B, so as' to turn, or revolve within the tube or'cylinder'A, in a horizontal plane j.. water passing to this wheel, C, through the spaces D, about the lower bearing of the shaftB. Around the shaft B, above the 'watepwheel C, is formed a spiral or screw-shaped ilange, E, extendingup through the pump tube or cylinder A, which ange, E, iits within the said cylinder A, sufficiently close to secure theraising of the water by it, which passes from'the water-wheel thereto, at its lower end, while at the same time no injury will occur to it, if sand, V8$c.,should be'carried up through the pump-cylinder with theL water being forced through it by the combined action of lthe wheel and screw-elevator. Above the upper end of the screw-elevator a square-shaped chamber, H, is formed, for the pur- .pose of breaking or overcoming'the twirl" cr'circular motion of the water as it leaves-the upper end of the screw-elevator. L,`a pipe or nozzle, at the upper end of pump-tube, through which pipe the water is to escape from the pump, and to be conducted to any desired point or' locality by making the proper connections therefor. :By-the combination of the water-wheel and screw-elevator, arranged substantially as' `herein descrbed,I am enabledttoraise 1ra-ter with great facility and with the expenditureof a power or fore'e but little,V if any,4 exceeding that required to operate either the wheel or elevator separately, While a result is secured equal to the action of both, if used separately.

Having thus described my invention, whatI claim as new, and desire to secure by: Letters Patent, is

In pumps the combination of a. Water-whecl and screw-elevator, `when arranged substantially asrand for the purpose described. 1 Y Y i i i I also claim an angular or, irregularly-shaped chamber, in combination with a pump-cylinder in whichwalter or' other iluid is elevated bya spiral or vertical motion, substantially as described for the purpose specified.

The above specification of my invention signed by ine this 21st day of November, 1866. Y I

E. HALL COVEL.

Witnesses:

ALBERT W. BRowN,

J. M. Govrucron. 

